Eleonor Tan Quan, M.D.
NPI 1770502254ActiveIndividual· Internal Medicine, Hematology & Oncology· Huntington Beach, CA
Internal Medicine, Hematology & Oncology (M.D.) with Sanford Health Network, practicing in Huntington Beach, California. Their prescriptions cost Medicare Part D more than their services did: $165,612 for 124 claims, against $17,828 paid for services in 2024. Daiichi Sankyo Inc. reported $19.04 in payments in 2025, mostly food and beverage. Lists Avera St Lukes and 1 other hospital as hospital affiliations.
Overview
| NPI | 1770502254 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 18, 2006 |
| Last updated in NPPES | Apr 29, 2025 |
| Certified by provider | Apr 29, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A53257 | CA |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 19307 | ND |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology (CA); Practitioner - Hematology/Oncology (MT); Practitioner - Hematology/Oncology (SD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 99 |
|---|---|
| Services billed | 199 across 7 procedure codes |
| Paid by Medicare | $17,828 |
Part D prescriptions in 2024
| Prescriptions (claims) | 124 · 163 30-day fills |
|---|---|
| Patients | 40 |
| Total drug cost | $165,612 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1981 |
|---|---|
| Medicare specialty | Hematology/Oncology |
Medical group
- Sanford Health NetworkTracy, MN · 351 clinicians
Hospital affiliations
- Avera St LukesAberdeen, SD
- Sanford Medical Center AberdeenAberdeen, SD
Industry payments (Open Payments)
- 2025$19.04 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Daiichi Sankyo Inc. | $19.04 | 1 |
What the 2025 payments were for
- Food and Beverage$19.04 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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